#include "stm32f10x.h"
#include "OLED_Font.h"
#include "oled.h"
#include "board.h"
/*引脚配置*/
void OLED_Init(void)
{
 	GPIO_InitTypeDef  GPIO_InitStructure;
 	

	RCC_APB2PeriphClockCmd(OLED_RCC, ENABLE);	 //使能B端口时钟
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8|GPIO_Pin_9;	 
 	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 		 //推挽输出
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//速度50MHz
 	GPIO_Init(GPIOB, &GPIO_InitStructure);	  //初始化GPIOB8,9
 	GPIO_SetBits(GPIOB,GPIO_Pin_8|GPIO_Pin_9);	


	delay_ms(800);
	OLED_WR_Byte(0xAE,OLED_CMD);//--display off
	OLED_WR_Byte(0x00,OLED_CMD);//---set low column address
	OLED_WR_Byte(0x10,OLED_CMD);//---set high column address
	OLED_WR_Byte(0x40,OLED_CMD);//--set start line address  
	OLED_WR_Byte(0xB0,OLED_CMD);//--set page address
	OLED_WR_Byte(0x81,OLED_CMD); // contract control
	OLED_WR_Byte(0xFF,OLED_CMD);//--128   
	OLED_WR_Byte(0xA1,OLED_CMD);//set segment remap 
	OLED_WR_Byte(0xA6,OLED_CMD);//--normal / reverse
	OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)
	OLED_WR_Byte(0x3F,OLED_CMD);//--1/32 duty
	OLED_WR_Byte(0xC8,OLED_CMD);//Com scan direction
	OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset
	OLED_WR_Byte(0x00,OLED_CMD);//
	
	OLED_WR_Byte(0xD5,OLED_CMD);//set osc division
	OLED_WR_Byte(0x80,OLED_CMD);//
	
	OLED_WR_Byte(0xD8,OLED_CMD);//set area color mode off
	OLED_WR_Byte(0x05,OLED_CMD);//
	
	OLED_WR_Byte(0xD9,OLED_CMD);//Set Pre-Charge Period
	OLED_WR_Byte(0xF1,OLED_CMD);//
	
	OLED_WR_Byte(0xDA,OLED_CMD);//set com pin configuartion
	OLED_WR_Byte(0x12,OLED_CMD);//
	
	OLED_WR_Byte(0xDB,OLED_CMD);//set Vcomh
	OLED_WR_Byte(0x30,OLED_CMD);//
	
	OLED_WR_Byte(0x8D,OLED_CMD);//set charge pump enable
	OLED_WR_Byte(0x14,OLED_CMD);//
	
	OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel
}

void OLED_WR_Byte(unsigned dat,unsigned cmd)
{
	if(cmd)
		Write_IIC_Data(dat);
	else
		Write_IIC_Command(dat);
}

void OLED_Display_On(void)
{
	OLED_WR_Byte(0X8D,OLED_CMD);  //SET DCDC命令
	OLED_WR_Byte(0X14,OLED_CMD);  //DCDC ON
	OLED_WR_Byte(0XAF,OLED_CMD);  //DISPLAY ON
}
void OLED_Display_Off(void)
{
	OLED_WR_Byte(0X8D,OLED_CMD);  //SET DCDC命令
	OLED_WR_Byte(0X10,OLED_CMD);  //DCDC OFF
	OLED_WR_Byte(0XAE,OLED_CMD);  //DISPLAY OFF
}	

void OLED_Clear(void)
{
	u8 i,n;		    
	for(i=0;i<8;i++)  
	{  
		OLED_WR_Byte (0xb0+i,OLED_CMD);    //设置页地址（0~7）
		OLED_WR_Byte (0x00,OLED_CMD);      //设置显示位置—列低地址
		OLED_WR_Byte (0x10,OLED_CMD);      //设置显示位置—列高地址   
		for(n=0;n<128;n++)OLED_WR_Byte(0,OLED_DATA); 
	} //更新显示
}

void OLED_DrawPoint(u8 x,u8 y,u8 t);
void OLED_Fill(u8 x1,u8 y1,u8 x2,u8 y2,u8 dot);
void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 Char_Size)
{
	unsigned char c=0,i=0;	
		c=chr-' ';//得到偏移后的值			
		if(x>Max_Column-1){x=0;y=y+2;}
		if(Char_Size ==16)
			{
			OLED_Set_Pos(x,y);	
			for(i=0;i<8;i++)
			OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);
			OLED_Set_Pos(x,y+1);
			for(i=0;i<8;i++)
			OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA);
			}
			else {	
				OLED_Set_Pos(x,y);
				for(i=0;i<6;i++)
				OLED_WR_Byte(F6x8[c][i],OLED_DATA);
				
	}
}

u32 oled_pow(u8 m,u8 n)
{
	u32 result=1;	 
	while(n--)result*=m;    
	return result;
}

void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size)
{
	u8 t,temp;
	u8 enshow=0;						   
	for(t=0;t<len;t++)
	{
		temp=(num/oled_pow(10,len-t-1))%10;
		if(enshow==0&&t<(len-1))
		{
			if(temp==0)
			{
				OLED_ShowChar(x+(size/2)*t,y,' ',size);
				continue;
			}else enshow=1; 
		 	 
		}
	 	OLED_ShowChar(x+(size/2)*t,y,temp+'0',size); 
	}
}
void OLED_ShowString(u8 x,u8 y, u8 *str,u8 Char_Size)
{
	unsigned char j=0;
	while (str[j]!='\0')
	{		OLED_ShowChar(x,y,str[j],Char_Size);
			x+=8;
		if(x>120){x=0;y+=2;}
			j++;
	}
}	
void OLED_Set_Pos(unsigned char x, unsigned char y)
{
	OLED_WR_Byte(0xb0+y, OLED_CMD);
	OLED_WR_Byte((x&0xf0)>>4|0x10, OLED_CMD);
	OLED_WR_Byte((x&0x0f), OLED_CMD);
}

void OLED_ShowCHinese(u8 x,u8 y,u8 no)
{
	u8 t,adder=0;
	OLED_Set_Pos(x,y);	
    for(t=0;t<16;t++)
		{
				OLED_WR_Byte(Hzk[2*no][t],OLED_DATA);
				adder+=1;
     }	
		OLED_Set_Pos(x,y+1);	
    for(t=0;t<16;t++)
			{	
				OLED_WR_Byte(Hzk[2*no+1][t],OLED_DATA);
				adder+=1;
      }		
}
void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[])
{
	 unsigned int j=0;
 unsigned char x,y;
  
  if(y1%8==0) y=y1/8;      
  else y=y1/8+1;
	for(y=y0;y<y1;y++)
	{
		OLED_Set_Pos(x0,y);
    for(x=x0;x<x1;x++)
	    {      
	    	OLED_WR_Byte(BMP[j++],OLED_DATA);	    	
	    }
	}
}
void Delay_50ms(unsigned int Del_50ms);
void Delay_1ms(unsigned int Del_1ms);
void fill_picture(unsigned char fill_Data)
{
	u8 m, n;
	for(m=0; m<8; m++)
	{
		OLED_WR_Byte(0xb0 + m, 0);
		OLED_WR_Byte(0x00, 0);
		OLED_WR_Byte(0x10, 0);
		for(n=0; n<128; n++)
			OLED_WR_Byte(fill_Data, 1);
	}
}
//void Picture();
void IIC_Start(void)
{
	OLED_SCL_H();
	delay_us(5);
	OLED_SDA_H();
	OLED_SDA_L();
	delay_us(5);
	OLED_SCL_L();
}

void IIC_Stop(void)
{
	OLED_SCL_H();
	delay_us(5);
	OLED_SDA_L();
	OLED_SDA_H();
	delay_us(5);
}

void Write_IIC_Command(unsigned char IIC_Command)
{
	IIC_Start();
	Write_IIC_Byte(0x78);
	IIC_Wait_Ack();
	Write_IIC_Byte(0x00);
	IIC_Wait_Ack();
	Write_IIC_Byte(IIC_Command);
	IIC_Wait_Ack();
	IIC_Stop();
}

void Write_IIC_Data(unsigned char IIC_Data)
{
	IIC_Start();
	Write_IIC_Byte(0x78);
	IIC_Wait_Ack();
	Write_IIC_Byte(0x40);
	IIC_Wait_Ack();
	Write_IIC_Byte(IIC_Data);
	IIC_Wait_Ack();
	IIC_Stop();
}

void Write_IIC_Byte(unsigned char IIC_Byte)
{
	u8 i, m, da;
	da = IIC_Byte;
	OLED_SCL_L();
	for(i=0; i<8; i++)
	{	
		//从最高位开始发
		m = da;
		m = m & 0x80;
		if(m == 0x80)
			OLED_SDA_H();
		else
			OLED_SDA_L();
		da = da << 1;
		OLED_SCL_H();
		delay_us(5);
		OLED_SCL_L();
	}
}

void IIC_Wait_Ack(void)
{

	OLED_SCL_H();
	OLED_SCL_L();
}

